<template>
  <div class="dashboard-container">
    <div class="app-container">
      <el-card>
        <el-row type="flex" justify="end">
          <el-button type="primary" size="small" @click="addPerm(1,'0')">添加权限</el-button>
        </el-row>
        <el-table :data="permissionList" row-key="id" default-expand-all>
          <el-table-column label="权限名称" prop="name" />
          <el-table-column label="权限标记" prop="code" />
          <el-table-column label="权限描述" prop="description" />
          <el-table-column label="操作">
            <template #default="{row}">
              <el-button v-if="row.type===1" type="text" size="small" @click="addPerm(2,row.id)">新增子权限</el-button>
              <el-button type="text" size="small" @click="updatePerm(row.id)">编辑权限</el-button>
              <el-button type="text" size="small" @click="delBtn(row.id)">删除权限</el-button>
            </template>
          </el-table-column>
        </el-table>
      </el-card>
      <!-- 放置一个弹层 用来编辑新增节点 -->
      <el-dialog :title="`${formData.id?'编辑':'新增'}权限点`" :visible="isShowDialog" @close="btnCancel">
        <!-- 表单 -->
        <el-form ref="perForm" :model="formData" :rules="rules" label-width="120px">
          <el-form-item label="权限名称" prop="name">
            <el-input v-model="formData.name" style="width:90%" />
          </el-form-item>
          <el-form-item label="权限标识" prop="code">
            <el-input v-model="formData.code" style="width:90%" />
          </el-form-item>
          <el-form-item label="权限描述">
            <el-input v-model="formData.description" style="width:90%" />
          </el-form-item>
          <el-form-item label="开启">
            <el-switch
              v-model="formData.enVisible"
              active-value="1"
              inactive-value="0"
            />
          </el-form-item>
        </el-form>
        <el-row slot="footer" type="flex" justify="center">
          <el-col :span="6">
            <el-button size="small" type="primary" @click="btnOK">确定</el-button>
            <el-button size="small" @click="btnCancel">取消</el-button>
          </el-col>
        </el-row>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import { getPermissionList, delPermissionList, getPermissionDetail, updatePermission, addPermission } from '@/api/permission'
import { listToTreeData } from '@/utils'
export default {
  data() {
    return {
      permissionList: [],
      isShowDialog: false,
      formData: {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        enVisible: '1'// 开启
      },
      rules: {
        name: [{ required: true, message: '该项不能为空', trigger: 'blur' }],
        code: [{ required: true, message: '该项不能为空', trigger: 'blur' }],
        description: [{ required: true, message: '该项不能为空', trigger: 'blur' }]
      }
    }
  },
  created() {
    this.getPermissionList()
  },
  // computed: {
  //   showText() {
  //     return this.formData.id ? '编辑' : '新增'
  //   }
  // },
  methods: {
    // 获取权限列表
    async getPermissionList() {
      // 权限数据也是有 pid 结构, 像是部门一样需要进行转换
      // 递归时第一层的 pid 是字符串 0 跟部门的空字符串不一样, 主要观察后台拿回来的数据
      this.permissionList = listToTreeData(await getPermissionList(), '0')
    },
    // 删除权限
    async delBtn(id) {
      await this.$confirm('确定删除吗？')
      await delPermissionList(id)
      this.getPermissionList()
      this.$message.success('删除权限成功')
    },
    // 编辑
    async updatePerm(id) {
      // 回显数据
      this.formData = await getPermissionDetail(id)
      this.isShowDialog = true
    },
    async btnOK() {
      // 效验表单
      await this.$refs.perForm.validate()
      // 发送请求
      if (this.formData.id) {
        // 编辑
        await updatePermission(this.formData)
      } else {
        // 新增
        await addPermission(this.formData)
      }
      // 提示用户
      this.$message.success('编辑成功')
      // 关闭弹窗
      this.isShowDialog = false
      // 更新数据
      this.getPermissionList()
    },
    btnCancel() {
      // 清理表单
      this.formData = {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        enVisible: '1'// 开启
      }
      // 清理效验
      this.$refs.perForm.resetFields()
      // 关闭弹窗
      this.isShowDialog = false
    },
    // 新增
    addPerm(type, pid) {
      this.formData.type = type
      this.formData.pid = pid
      this.isShowDialog = true
    }
  }
}
</script>

<style>

</style>
